Enable traced_perf android standalone build
Enable traced_perf android standalone build

Traced_perf currently builds as-is so long as API 29 is used.
This will allow traced_perf to be built in standalone builds in
the android_release_incl_heapprofd builds similar to how heapprofd
is built there.

Testing:

- build android_release_incl_heapprofd_arm64
- start an Android 10 emulator
- sideload perfetto, libperfetto.so, traced, and traced_perf
- launch traced & traced_perf as root.
- run sideloaded perfetto using:
  perf_event_config {
    timebase {
      frequency: 100
    }
    callstack_sampling {
      scope {
          target_cmdline: "system_server"
          target_cmdline: "surfaceflinger
        }
      }
    }
- verify collected trace opens in the viewer, displays a flamegraph,
 and that callstacks look sane.

Change-Id: Ic31c477d56846cd8f6feab4f41f109ff9942ed03

google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto